LT1617: Micropower Inverting DC/DC Converters in SOT-23 Data Sheet10/2/2009142K
Features and Benefits
- Low Quiescent Current:
- 20µA in Active Mode
- <1µA in Shutdown Mode
- Operates with VIN as Low as 1V
- Low VCESAT Switch: 250mV at 300mA
- Uses Small Surface Mount Components
- High Output Voltage: Up to –34V
- Tiny 5-Lead SOT-23 Package
The LT1617/LT1617-1 are micropower inverting DC/DC converters in a 5-lead SOT-23 package. The LT1617 is designed for higher power systems with a 350mA current limit and an input voltage range of 1.2V to 15V, whereas the LT1617-1 is intended for lower power and single-cell applications with a 100mA current limit and an extended input voltage range of 1V to 15V. Otherwise, the two devices are functionally equivalent. Both devices feature a quiescent current of only 20µA at no load, which further reduces to 0.5µA in shutdown. A current limited, fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of load current. The 36V switch allows high voltage outputs up to –34V to be easily generated without the use of costly transformers. The LT1617’s low off-time of 400ns permits the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications.
- LCD Bias
- Handheld Computers
- Battery Backup
- Digital Cameras
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
R303 Reliability Data3/23/2018232 K
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|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|LT1617ES5#TRMPBF||Material Declaration||Reliability Data||5-Lead TSOT-23|
|LT1617ES5#TRPBF||Material Declaration||Reliability Data||5-Lead TSOT-23|
|LT1617ES5-1#TRMPBF||Material Declaration||Reliability Data||5-Lead TSOT-23|
|LT1617ES5-1#TRPBF||Material Declaration||Reliability Data||5-Lead TSOT-23|
|Wafer Fabrication Data||R303 Reliability Data|
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